Thin seam coal mining technology
Clark, J
Thin seam coal mining technology - New Jersey: Noyes Data Corporation, 1982 - xiv, 385p. - Energy technology review No. 80 .
081550909X
Technology
Coal mines and mining
622.333 / M2
Thin seam coal mining technology - New Jersey: Noyes Data Corporation, 1982 - xiv, 385p. - Energy technology review No. 80 .
081550909X
Technology
Coal mines and mining
622.333 / M2